/* 这是nav区域开始 */
/* 这是nav上面区域 */
.nav_top{
    height: 43px;
    background-color: #252525;
    border: 1px #2e2e2e;
    line-height: 43px;
}
.nav_top_div span{
    color: #fff;
   
}
.nav_top_div .nav_top_div_1 i{
   display:inline-block;
   width: 20px;
   height: 12px;
   background-image: url(../images/tel.png);
   background-repeat:no-repeat ;
   vertical-align: middle;
   
}
.nav_top_div .nav_top_div_1 i:nth-of-type(2){
    background-position-x: 3px;
}
.nav_top_div .nav_top_div_1 span:nth-of-type(1){
    margin-right: 20px;
    
}
/* 这是nav下面区域 */
.nav_bottom{
    height: 103px;
    background-color: #fff;
    line-height: 103px;
}
.nav_bottom ul  li{
    float: left;
    margin-right: 50px;
    cursor: pointer;
}
.nav_bottom ul  li:hover{
    background-image:url(../images/nav_bg02.png);
    background-position: bottom;
    background-repeat: repeat-x;

}
.nav_bottom ul  li a{
    color: #545454;
}
.nav_bottom h1{
    height: 103px;
    padding: 28px 0px 31px;
    box-sizing: border-box;
    margin-right: 371px;
}
.nav_bottom h1 img{
   width: 150px;
   height: 50px;
}

/* 这是nav区域结束 */
/* 这是banner区域开始 */
.banner{
    background-image: url(../images/banner1.jpg);
    height: 549px;
    background-repeat: no-repeat;
  
    background-size:cover;
}
.banner .banner_div{
    width: 450px;
    height: 210px;
    background-image: url(../images/border.png);
 
    color: #fff;
    padding-top:28px ;
    background-repeat: no-repeat;
   
   display: inline-block;
   margin-top: 165px;
   
}
.banner .banner_wrapper{
 
    text-align: center;
    
}
.banner .banner_div h2{
    font-size: 45px;
    line-height: 74px;
}
.banner .banner_div p{
    font-size: 20px;
    line-height: 28px;
}
/* 这是banner 区域结束 */

/* 这是projuct 产品区域的开始 */
/* 这是产品区域的ul 列表 */
.product>ul li{
    width: 400px;
    height: 210px;
    text-align: center;
    padding-top: 22px;
    float: left;
    background-repeat:no-repeat ;
    box-sizing: border-box;
}
.product>ul{
    padding-top:27px;
}
.product>ul li:nth-child(1){
    background-image: url(../images/01.jpg);
}
.product>ul li:nth-child(2){
    background-image: url(../images/02.jpg);
}
.product>ul li:nth-child(3){
    background-image: url(../images/03.jpg);
}
.product>ul li p{
    color: #fff;
    font-size: 14px;
    line-height: 28px;
   
}
.product>ul li p:nth-child(1){
    font-size: 20px;
    font-weight: bold;
    line-height: 60px;
}
/* 这是product的下面产品展示区域 */
.product .product_div{
  margin-top: 66px;
}
.product .product_div h2:hover{
    background-image:url(../images/nav_bg02.png) ;
    background-repeat:no-repeat ;
    background-position:left bottom;
}
.product .product_div h2 {
    margin-bottom: 42px;
    cursor: pointer;
}
.product .product_div>ul{
    width: 568px;
    height: 580px;
    
}
.product .product_div>ul li{
    width: 271px;
    height: 276px;
    float: left;
    cursor: pointer;
    background-repeat: no-repeat;
    
    
}
.product .product_div>ul li:nth-child(1){
    background-image: url(../images/pic01.jpg);
    margin-right: 26px;
    margin-bottom:27px ;
}
.product .product_div>ul li:nth-child(3){
    background-image: url(../images/pic03.jpg);
    margin-right: 26px;
}
.product .product_div>ul li:nth-child(2){
    background-image: url(../images/pic02.jpg);
    margin-bottom: 27px;
}
.product .product_div>ul li:nth-child(4){
    background-image: url(../images/pic04.jpg);
   
}
.product .product_div>ul li div{
    height: 0px;
    width: 271px;
    overflow: hidden;
    transition: all 1s;
}
.product .product_div>ul li div img{
    width: 271px;
}
.product .product_div> ul li:hover div{
   height: 276px;
}
.product .product_div .product_div_right{
    width: 602px;
    height: 580px;
    cursor: pointer;
    background-repeat: no-repeat;
    
    background-image: url(../images/pic05.jpg);
    
}
.product .product_div .product_div_right div{
    width: 602px;
    height: 0px;
    overflow: hidden;
    transition: all 1s;
}
.product .product_div .product_div_right div img{
    width: 602px;
}
.product .product_div .product_div_right:hover div{
    height: 580px;
}
.product_div{
   
    height: 693px;
}
/* 这是产品区域的结束 */

/* 这是关于我们区域的开始 */
.aboust{
    margin-top: 56px;
    height: 507px;
    background-image: url(../images/banner3.jpg);
    background-repeat: no-repeat;
    background-size:cover;
    text-align: center;
}
.aboust .aboust_div{
    width: 672px;
    display: inline-block;
    line-height: 35px;
    font-size: 13px;
    color: #676a6a;
    padding-top:58px ;
    
   
}
.aboust .aboust_div h3{
    line-height: 66px;
    font-weight:lighter;
    
    cursor: pointer;
    
}
.aboust .aboust_div h3:hover{
    background-image: url(../images/nav_bg02.png);
    background-repeat: no-repeat;
    background-position:bottom ;
}
.aboust .aboust_div a{
    display: inline-block;
    width: 150px;
    height: 40px;
    background-color: #20bed7;
    color: #fff;
    line-height: 40px;
    border-radius:20px ;
    margin-top: 32px;
    
}
/* 这是关于我们区域的结束 */

/* 这是新闻区域的开始 */
.new_center .new_center_ul1>li{
    width: 380px;
    height: 250px;
   
    float: left;
}
.new_center{
    height: 675px;
    margin-top: 48px;
}
.new_center .new_center_ul1>li:nth-child(2){
    margin-right: 28px;
    margin-left: 28px;
}
.new_center .new_center_ul1 .new_center_ul2 li{
    font-size: 13px;
    color: #495552;
    line-height: 36px;
    border-bottom:1px dotted #c3c3c3;
}
.new_center .new_center_ul1 .new_center_ul2{
    margin-top: 13px;
}
.new_center .new_center_ul1 .new_center_ul2 li .span1{
    color: #1ac9e1;
}
.new_center .new_center_ul1 .new_center_ul2 li .span2{
float: right;
}
.new_center  h2:hover{
    background-image: url(../images/nav_bg02.png);
    background-repeat: no-repeat;
    background-position: left bottom;
    cursor: pointer;

}
.new_center  h2{
    
    margin-bottom: 40px;
}
/* 这是新闻区域的结束 */

/* 这是页脚区域的开始 */
.footer{
    background-color: #141414;
    height: 471px;
    position: relative;
}
.footer .footer_div1 img{
    width: 150px;
    height: 47px;

}
.footer .footer_div1 p{
    color: #fff;
    font-size: 13px;
    line-height: 42px;
}
.footer .footer_div1 {
    padding-top: 66px;
}
.footer .footer_div1 p:nth-child(1){
    margin-bottom: 21px;

}
.footer .footer_div1 p i{
    display:inline-block;
    width: 22px;
    height: 16px;
   
    vertical-align: middle;
    background-image: url(../images/icon.jpg);
}
.footer .footer_div1 p:nth-of-type(2) i{
    background-position: 4px 0;
}
.footer .footer_div1 p:nth-of-type(3) i{
    background-position: 2px -42px;
}
.footer .footer_div1 p:nth-of-type(4) i{
    background-position: 0 -84px;
}
.footer .footer_div2{
    padding-top:65px ;
    width: 232px;
    height: 204px;
    margin-left: 91px;
}
.footer .footer_div2 h2{
    line-height: 50px;
    font-size: 19px;
    color: #fff;
    margin-bottom: 33px;
   
}
.footer .footer_div2 h2:hover{
    cursor: pointer;
    background-image: url(../images/line_bg.png);
    background-repeat: no-repeat;
    background-position:left bottom ;
}
.footer .footer_div2 ul li{
    
    color: #fff;
    line-height: 42px;
    font-size: 13px;
}
.footer .footer_div2>ul{
    width: 232px;
    height: 204px;
}
.footer .footer_div2>ul li:nth-child(1){
    float:left;
    margin-right: 80px;
}
.footer .footer_div2>ul li:nth-child(3){
    float:left;
    margin-right: 80px;
}
.footer .footer_div2>ul li:nth-child(5){
    float:left;
    margin-right: 80px;
}
.footer .footer_div2>ul li:nth-child(2){
    float:right;
}
.footer .footer_div2>ul li:nth-child(4){
    float:right;
}
.footer .footer_div2>ul li:nth-child(6){
    float:right;
}
.footer .footer_div3{
    color: #fff;
    padding-top: 65px;
    margin-left: 137px;
}
.footer .footer_div3 p {
    color: #8c898b;
}
.footer .footer_div3 h2{
    line-height: 50px;
    cursor: pointer;
    margin-bottom: 40px;
}
.footer .footer_div3 h2:hover{
      background-image: url(../images/line_bg.png);
      background-repeat: no-repeat;
      background-position: left bottom;
}
.footer .footer_div3 form{
    width: 320px;
    height: 44px;

}
.footer .footer_div3 form input{
    width: 216px;
    height: 44px; 
    background-color: #333;
   
    outline: none;
    border: none;
}
.footer .footer_div3 form input::placeholder{
    color: yellow;
    
}
.footer .footer_div3 form button{
    width: 100px;
    height: 46px;
   
    background-color: #3aa27f;
    border: none;
}
.footer .footer_div3 p{
    margin-top: 44px;
}
.footer .footer_div3 p i{
   display: inline-block;
    width: 30px;
    height: 30px;
    margin-left: 14px;
    vertical-align: middle;
    background-image: url(../images/fenxiang.png);
}
.footer .footer_div3 p i:first-child{
    background-position: -1px 1px;
}
.footer .footer_div3 p i:last-child{
    background-position: -44px 1px;
}
.footer>p{
    color: #4b4849;
    text-align: center;
    height: 75px;
    background-color: #0c0c0c;
    position: absolute;
    bottom: 0px;
    width: 100%;
    line-height: 75px;
}
/* 这是页脚区域的结束 */